The invention belongs to the technical field of fly trappers, and relates to an environment-friendly fly trapping cage. A partition board is set in the middle of the inner cavity of a base, so that the base is divided into an upper cavity and a lower cavity. An opening is set on the side wall of the lower cavity. A through hole is arranged in the middle of the partition board, and a fly trapping chamber and a fly killing chamber are disposed on the partition board. A transparent outer cover is disposed on the outer wall of the fly killing chamber, and a conical inner cover made of a non-transparent material is disposed on the outer wall of the fly trapping chamber. Small holes are arranged at the top of the inner cover, and flies can enter into the fly killing chamber via the small holes. The environment-friendly fly trapping cage has the advantages that the fly trapping chamber is separated from the fly killing chamber, fly trapping food in the fly trapping chamber is not polluted, a large quantity of flies can be trapped and killed, and the fly trapping cage can be used to kill flies for a long time, in low cost, free of environmental pollution, and fine in environmental protection effect. The environment-friendly fly trapping cage is simple in structure, convenient in use and cleaning, low in cost and suitable for trapping and killing flies in multiple places.Linvention appartient au domaine technique des pièges à mouches, et concerne une cage de piégeage de mouches respectueuse de lenvironnement. Un panneau de séparation est disposé au milieu de la cavité interne dune base, de sorte que la base soit divisée en une cavité supérieure et une cavité inférieure. Une ouverture est placée sur la paroi latérale de la cavité inférieure. Un trou traversant est réalisé au centre du panneau de séparation, et une chambre de piégeage de mouches et une chambre de destruction des mouches sont disposés sur le panneau de séparation. Un couvercle extérieur transparent est disposé
